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uggghhhhhh jag prutar for mycket

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Robin Clark 2013-08-31 19:01:37 +01:00
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submission_thesis/CH8_Conclusion/copy.tex
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@ -376,13 +376,13 @@ If we require FMMD to produce full FTA diagrams, we need to add these
attributes to the FMMD UML model\footnote{Top down failure mode models, such as FTA, are additionally
useful in guiding diagnostic analysis.}.
\fmmdglossINHIBIT
%
\paragraph{Environment, operational states and inhibit gates: additions to the UML model.}
%
FTA, in addition to using symbols borrowed from digital logic introduces three new symbols to
model environmental, operational state and inhibit gates; % we discuss here
how these can be incorporated into the FMMD model is discussed below.
%
A system will be expected to perform in a given environment.
%
Environment in the context of this study
@ -488,11 +488,11 @@ are added to UML diagram in figure \ref{fig:cfg} are represented in figure \ref
\clearpage
\subsection{Retrospective Failure Mode analysis and FMMD}
\subsection{Retrospective failure mode analysis and FMMD}
The reasons for applying retrospective failure mode analysis could be:
\begin{itemize}
\item approving previously un-assessed systems to a safety standard,
%\item approving previously un-assessed systems to a safety standard,
\item to re-visit a safety analysis after a small h/w or s/w change,
\item upon discovery of a new {\bc} {\fm},
\item or to determine the failure mode behaviour of an previously un-assessed instrument used in safety critical verification.
@ -516,7 +516,7 @@ failure modes.
%come to light.
%
%
\paragraph{Retrospective Failure Mode analysis and software.}
\paragraph{Retrospective failure mode analysis and software.}
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We can apply retrospective FMMD to electronic and software hybrid systems as well.
%